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Finding the Fourth Proportional to 8,633.08, 12,950.88 and 2,789.92

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Solution

The fourth proportional to 8,633.08, 12,950.88 and 2,789.92 is: 4,185.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,633.08 : 12,950.88 = 2,789.92 : x
  2. Step 2: Convert to fraction form
    8,633.08/12,950.88 = 2,789.92/x
  3. Step 3: Cross multiply
    8,633.08x = 12,950.88 × 2,789.92
  4. Step 4: Simplify right side
    8,633.08x = 36,131,919.13
  5. Step 5: Solve for x
    x = 36,131,919.13/8,633.08
  6. Step 6: Final answer
    x = 4,185.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.